 Wednesday, August 14, 2013, 11:50, Travis Cave, South Hot-Cell, Maintenance, TM3, , module move
|
| TM#3 and its new source tray have been both moved into the south hot cell. |
|
Thursday, August 15, 2013, 07:37, David Wang, ITE, Repair, TM4, , I moved 5 shielding blocks from ITE to block storage area.
|
| I moved5shielding blocks from ITE to block storage area, This is a job for preparing ITE vacuum surge investigation and leak check. |
|
Thursday, August 15, 2013, 09:32, chad fisher, South Hot-Cell, Repair, TM3, , TM3 source tray installation status
|
The installation of the module side water block jig has been successful.
During initial attempts yesterday afternoon,
installation of the jig proved, as expected to be extremely difficult. This was primarily due a poorly position water block from a previous repair were |
Wednesday, August 21, 2013, 20:36, Grant Minor, South Hot-Cell, Repair, TM3, , TM3 module-side water block sealing surface inspection (post polishing) 
|
The water block sealing surfaces on the module-side of TM3 were polished this week by Chad Fisher, using his air-ratchet controlled rotating head tools
(single and double-surface polishing tools).
Photos of the polishing tools in-use are attached (from August 16 - 21, 2013) |
|
Thursday, August 22, 2013, 19:38, Grant Minor, South Hot-Cell, Repair, TM3, , TM3 Rev 3 source tray - water blocks connected and torqued 6x
|
After a great struggle with the water block jigs, the TM3 source tray was finally advanced fully into the service tray and all water blocks were connected
and torqued to spec in the hot cell by Chad Fisher.
Notes and description of problems encountered during the installation: |
|
Friday, August 23, 2013, 18:32, Grant Minor, South Hot-Cell, Repair, TM3, , TM3 Rev 3 - steerer wire broken from connector on module side
|
While continuing on the TM3 Rev 3 source tray installation, Chad noticed today that one of the steerer wires is broken and has come out of the thermocouple-style
connecter block (see attached photos).
From drawing ITA2826 (Rev D02 attached) it is likely that this is for either the "upper" or "right side" steerer plate. |
|
Monday, August 26, 2013, 18:22, Grant Minor, South Hot-Cell, Repair, TM3, , TM3 Rev 3 - all connetions made except steerers, IMG, and entrance window 8x
|
Today Chad finished making all connections to the new source tray, except for:
- steerers - broken wire, must be repaired at a later date
- IMG gauge - bracket required, old bracket thrown out with previous tray by accident, see ITA3301, must be installed at a later date |
|
Monday, August 26, 2013, 18:26, Grant Minor, Conditioning Station, Standard Operation, TM3, , TM3 moved from Hot Cell to Conditioning Station
|
Target Module 3 with no target, and a partially-installed Rev-3 source tray (no steerers connected, no IMG connected, entrance window lines blanked off
on module side and not connected to containment box) was transported successfully to the Conditioning Station by Travis Cave and David Wang at around 4pm
today. David attached the vacuum system for start of pump-down to prepare for leak checking. |
|
Thursday, August 29, 2013, 06:48, David Wang, Conditioning Station, Development, TM3, , TM3 leak check in CS with new source tray.
|
A huge leak had been found on HS circuit during 60 psi helium pressurize test. Other circuits are free of obvious major leak at present .We will test
them again once the TM3 is back to CS. See attachment for details |
|
Thursday, August 29, 2013, 09:08, chad fisher, South Hot-Cell, Repair, TM3, , Heat Shield Circuit Leak
|
The heat shield circuit was pressurized with air (15-20 psi) and snoop applied to the water block joint and brazes. Bubbles formed at the joint between
the two water blocks indicating that the leak is a c seal problem. Pictures attached but also on docushare Collection-11285. |
 Thursday, August 29, 2013, 10:09, Bevan Moss, South Hot-Cell, Repair, TM3, , Heat Shield Circuit Leak
|
chad fisher wrote:
The heat shield circuit was pressurized with air (15-20 psi) and snoop applied to the water block joint |
|
Wednesday, September 04, 2013, 12:21, Bevan Moss, South Hot-Cell, Repair, TM3, , Ante-room work
|
September 3rd
David Wang and myself lowered the leak testing cart into the Ante room and prepared the ante-room for the leak testing of TM3s line. David and
Grant then entered the anteroom and inspected the old c-seal and leak tested the the heat shield line. The line pumped down to the lower limits of the |
|
Wednesday, September 04, 2013, 18:53, Grant Minor, South Hot-Cell, Repair, TM3, , Maico's measurements of new c-seals and bench-tested c-seals
|
Today Maico measured the thickness of three indium-plated inconel c-seals, presumably Ultra-Seal P/N 50606. These seals had NOT been in the Hot
Cell.
|
|
Wednesday, September 04, 2013, 19:01, Grant Minor, South Hot-Cell, Repair, TM3, , Inspection / Ante Room Leak Check Results on TM3 Heat Shield lines (3 Sept 2013)
|
Yesterday, Grant entered the Ante Room with David Wang to visually inspect the two sets of failed c-seals from the Heat Shield circuit, to remove the
second set from the Heat Shield water blocks, and to leak check the heat shield circuit with o-rings and a water-block-to-leak-detector fitting.
Some photos of the inspected seals are in the attached design review presentation. Some unusual marks were observed on both sets of failed |
|
Friday, September 06, 2013, 16:41, Bevan Moss, South Hot-Cell, Development, TM3, , C-Seal crush investigation 6x
|
Today Maico completed the new leak testing tool and blank off. He tested them with C-seals without springs and all was leak tight. He then inspected
the crushed seals and noticed that there was an area that was crushed less on both seals (more prominent in one, 20130906_tm3sourtrayefurb_P1020975)
and that this reduced crushed zone only appears on one side of the seal. This is similar to the failure seen on both sets of the heat shield lines. On |
|
Friday, September 06, 2013, 17:50, Grant Minor, South Hot-Cell, Development, TM3, , C-Seal crush investigation
|
Bevan Moss wrote:
Today Maico completed the new leak testing tool and blank off. He tested them with C-seals without springs and |
|
Tuesday, September 10, 2013, 12:11, Isaac Earle, South Hot-Cell, Repair, TM3, , Module side heat shield water block polishing and blank-off installation
|
The sealing surfaces of the module side heat shield water block were polished on September 9th in the morning using Chad's polishing tool with
the following attachments:
- Scotchbrite pads (30 seconds) (after this step indium material from the previous seal was no longer visible on the sealing surface) |
|
Wednesday, September 11, 2013, 13:43, David Wang, Conditioning Station, Development, TM3, , Started 3 turbo pumps on CS for TM3
|
| TM3 has been connected in CS.Three turbo- pumps have been started. The pumping down is fine so far. |
|
Wednesday, September 11, 2013, 15:37, Bevan Moss, South Hot-Cell, Repair, TM3, , C-Seal leak checking and repair
|
This e-log is to cover the work completed from September 9th until the 11th.
September 9th
Today Maico completed the leak checking blank off and leak checking tool (to replace the one that was contaminated). This tool was then leak checked |
|
Friday, September 13, 2013, 07:49, David Wang, Conditioning Station, Development, TM3, , TM3 water lines leak check at CS
|
I leak checked TM3 water lines at CS with 60 psi and 80psi helium. The base leak rate is 5.0xe-9 atm.cc/sec. Each circuit 3 minutes helium pressurizing
for each time test. No any respose had been found on leak detector during the test. See attachment |
|